Download - Engineering Surveyor

Recording and informingKeeping recordsGood records are essential for: accurate construction dissemination of setting-out information accurate measurement of completed work resolving disputes with supervising authority.Records to be maintained during the job and retained until all contractual obligations are fulfilled include: all drawings issued by the supervising authority site instructions issued by the supervising authority coordinates of main setting-out points locations and levels of relevant benchmarks and original ground levels records of located/relocated underground and over-ground utility services digital photographs/sketches of obstructions not shown on original drawings classes of subsoil encountered and obstacles to excavation printouts and calculations of the setting-out all field books and original observations computer files copies of Site Information Sheets received and issued CAD/hardcopy scale drawings of as-built works.It is prudent to duplicate key records, especially those relating to measurement, and to store these records and anycomputer back-up files separately off site.Field documentsSite engineers should be supplied with: level books ruled for ‘rise and fall’ or ‘height of collimation’ observation/record books for use with theodolites, Total Stations or other site instrumentation pads of Site Information Sheets, preferably sequentially numbered pads of sewer information sheets.Site Information SheetsThe site engineer should use Site Information Sheets to confirm and supplement oral information/instructions givento foremen and gangers etc. Use sketches to clarify the information as appropriate. Typical details to be included: essential dimensions offset distances from line pegs levels of offset level pegs levels of profiles and length of travellers spoil heaps, borrow pits and haul roads.Quality assuranceConstruction sites have quality systems in place that may be independently audited in accordance with the QualityAssurance procedures or by the supervising authority or end customer. These procedures will establish the types ofinformation and details that need to be recorded from any setting-out. They may be company standards or tailored tothe needs of a specific site.CIRIA C70919